var $jquery = jQuery.noConflict();
$jquery(document).ready(function () {	
	
	$jquery('#nav li').hover(
		function () {
			//show its submenu
			$jquery('ul', this).slideDown(100);

		}, 
		function () {
			//hide its submenu
			$jquery('ul', this).slideUp(100);			
		}
	);
	
});